Slick insert into postgreSQL - scala

Question

I am just trying to add a row from slick to my postgreSQL Database.
Here what I am trying to do :
val dbConfig = DatabaseConfigProvider.get[JdbcProfile](Play.current)
import dbConfig.driver.api._
val query = Task += new TaskRow(5, "taskName", status = "other")
println(Task.insertStatement)
val resultingQuery = dbConfig.db.run(query).map(res => "Task successfully added").recover {
case ex: Exception => ex.getCause.getMessage
}
Here the result of println :
insert into "task" ("taskname","description","status","datetask","pediocitynumber","periodicitytype") values (?,?,?,?,?,?)
I don't have any result exception or success from the resulting query.
Code generate by slick-codegen 3.1.1 :
case class TaskRow(taskid: Int, taskname: String, description: Option[String] = None, status: String, datetask: Option[java.sql.Timestamp] = None, pediocitynumber: Option[Int] = None, periodicitytype: Option[String] = None)
/** GetResult implicit for fetching TaskRow objects using plain SQL queries */
implicit def GetResultTaskRow(implicit e0: GR[Int], e1: GR[String], e2: GR[Option[String]], e3: GR[Option[java.sql.Timestamp]], e4: GR[Option[Int]]): GR[TaskRow] = GR{
prs => import prs._
TaskRow.tupled((<<[Int], <<[String], <<?[String], <<[String], <<?[java.sql.Timestamp], <<?[Int], <<?[String]))
}
/** Table description of table task. Objects of this class serve as prototypes for rows in queries. */
class Task(_tableTag: Tag) extends Table[TaskRow](_tableTag, "task") {
def * = (taskid, taskname, description, status, datetask, pediocitynumber, periodicitytype) <> (TaskRow.tupled, TaskRow.unapply)
/** Maps whole row to an option. Useful for outer joins. */
def ? = (Rep.Some(taskid), Rep.Some(taskname), description, Rep.Some(status), datetask, pediocitynumber, periodicitytype).shaped.<>({r=>import r._; _1.map(_=> TaskRow.tupled((_1.get, _2.get, _3, _4.get, _5, _6, _7)))}, (_:Any) => throw new Exception("Inserting into ? projection not supported."))
/** Database column taskid SqlType(serial), AutoInc, PrimaryKey */
val taskid: Rep[Int] = column[Int]("taskid", O.AutoInc, O.PrimaryKey)
/** Database column taskname SqlType(text) */
val taskname: Rep[String] = column[String]("taskname")
/** Database column description SqlType(text), Default(None) */
val description: Rep[Option[String]] = column[Option[String]]("description", O.Default(None))
/** Database column status SqlType(statustask) */
val status: Rep[String] = column[String]("status")
/** Database column datetask SqlType(timestamp), Default(None) */
val datetask: Rep[Option[java.sql.Timestamp]] = column[Option[java.sql.Timestamp]]("datetask", O.Default(None))
/** Database column pediocitynumber SqlType(int4), Default(None) */
val pediocitynumber: Rep[Option[Int]] = column[Option[Int]]("pediocitynumber", O.Default(None))
/** Database column periodicitytype SqlType(periodicitytype), Default(None) */
val periodicitytype: Rep[Option[String]] = column[Option[String]]("periodicitytype", O.Default(None))
}
/** Collection-like TableQuery object for table Task */
lazy val Task = new TableQuery(tag => new Task(tag))
Could someone explain what I am doing wrong?
EDIT:
To clarify my question :
The row is not added to the table, it seems that nothing happen. I can't see any exception or error thrown.
I think it could come from the sql statement and the questions marks (values (?,?,?,?,?,?)). It should be the actual values of the fields, right?
More code:
class Application #Inject()(dbConfigProvider: DatabaseConfigProvider) extends Controller {
def index = Action {
Ok(views.html.main())
}
def taskSave = Action.async { implicit request =>
println(request.body.asJson)
val dbConfig = DatabaseConfigProvider.get[JdbcProfile](Play.current)
import dbConfig.driver.api._
val query = Task += new TaskRow(5, "taskName", status = "other")
println(Task.insertStatement)
println(query)
val resultingQuery = dbConfig.db.run(query).map(res => "TAsk successfully added").recover {
case ex: Exception => ex.getCause.getMessage
}
resultingQuery.map(r => println("result : " + r))
Future(Ok(""))
}
}
route :
PUT /task-save controllers.Application.taskSave

Answer 1

The statement is not wrong because of the values (?,?,? ...).
The lazy val Task is of type TableQuery[...] . When you call insertStatement on this object you get back a string that represents the template SQL string that runs in the background. That is expected.
So that is not the indicator of the problem.
Try something like this :
val db = Database.forConfig("h2mem1")
try {
Await.result(db.run(DBIO.seq(
// create the schema
Task.schema.create,
// insert two User instances
Task += (2, "abcd", "201-01-01"),
// print the users (select * from USERS)
Task.result.map(println))), Duration.Inf)
} finally db.close